THE MODAL ANALYSIS, USING SIMULATION AND MODELLING, OF THE BOOM OF THE ERC-1400 BUCKET-WHEEL EXCAVATOR DURING OPERATION

Florin Dumitru POPESCU, Sorin Mihai RADU, Andrei ANDRAȘ, Ildiko BRÎNAȘ, Mihaela Olga MARIȚA, Narcis Ionel REBEDEA

Abstract


Bucket-wheel excavators (BWEs) are subjected to vibrations produced by the excavation process. The boom of the BWE supports and is used to position the bucket-wheel at cutting heights up to 30 meters. The frequency of the vibrations induced by the excavation process is dependent on the number of installed buckets, and the rotation speed of the bucket-wheel. In this paper we propose a model for the boom for which modal analysis is performed. Based on the modal analysis, for the excavation forces we have studied the frequency response of the excavator boom.

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References


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